Revealing a Rune Stone's Secrets Geologists are trying to determine whether a stone, found in 1898 and covered with ancient Swedish runes telling a tale of a massacre of a band of Scandinavian explorers in Minnesota in 1362, is authentic.

Horses' Mouths Date Sierra Nevada Uplift Estimates on when the Sierra Nevada began its major uplift vary widely. In an effort to pinpoint the escalation, some geoscientists are going straight to the horse's mouth, literally, using horse teeth to date the mountains' uplift.

Monitoring Aboriginal Rock Art Over the past 30 years, this remote region in Australia, once home only to Aboriginal tribes and wallabies, has become increasingly industrialized, leading to worries about possible acceleration of weathering and deterioration of the rock art.

The Killing Bones When cops learned that a notorious Oregon antiquities collector had graduated from grave robbing to ordering up a contract murder, their macabre sting operation exposed the dark side of digging up the past.

T. Rex Hits Puberty New research based on growth ring counts from the bones of Tyrannosaurus rex shows that the dinosaur put on the bulk of its mass during its teenage years and then died shortly after its growth spurt.